ATLANTA — The personal doctor of Chris Benoit, the pro wrestler who killed his wife and son and then committed suicide in June, has filed for bankruptcy.

Dr. Phil Astin, who faces federal charges of overprescribing medication to two patients other than Benoit, filed his voluntary Chapter 7 petition on Oct. 1 in U.S. Bankruptcy Court for the northern district of Georgia.

Subsequent docket entries by the court state that the petition was deficient, and the court set several due dates by which Astin must file a list of all of his creditors, a statement of financial affairs and other documentation.

In the petition, Astin listed estimated assets of up to $10,000 and estimated liabilities of up to $50,000.

Last month, a judge appointed a public defender to represent Astin after his private lawyer asked to be removed from the case because Astin could no longer pay his legal bills.

Astin’s lawyer had said that since being placed under house arrest in the case, Astin has been unable to work and foreclosure notices and other liens have been placed on his real estate interests.

Prosecutors have said Benoit, 40, strangled his wife with a cord, used a choke hold to strangle his seven-year-old son, placed Bibles next to the bodies and hanged himself on a piece of exercise equipment the weekend of June 22.

Authorities have said Astin prescribed a 10-month supply of anabolic steroids to Benoit every three to four weeks between May 2006 and May 2007. But Astin currently faces no charges related to those prescriptions. More charges against Astin, however, are expected, the government has said.

Steroid use has lingered as a theory behind the killings, since anabolic steroids were found in Benoit’s home and tests conducted by authorities showed Benoit had roughly 10 times the normal level of testosterone in his system when he died.

Some experts believe that use of testosterone can contribute to paranoia, depression and violent outbursts known as “roid rage.”

Benoit’s father believes years of head trauma his son suffered while in the ring contributed to the killings.